another fun science experiment
what you need:
1/2 cup 20-volume hydrogen peroxide liquid
(20-volume is a 6% solution, which can be found at a beauty supply store or hair salon)
1 Tablespoon of dry yeast
3 Tablespoons of warm water
Liquid dish washing soap
note: we used regular hydrogen peroxide, if you use the 6% the liquid will come out even more foamier.
*please make sure that if you use the 6% kind, it is a lot stronger and
you will need safety goggles and gloves when you do this experiment
pour hydrogen peroxide into a small soda bottle
add 8-10 drops of food coloring
add about a tablespoon of liquid dish soap
swish it all around
in a small bowl or cup
mix the water and yeast together
then head outside.....
pour the yeast mixture into the bottle and stand back.
how it works:
the yeast acts as a catalyst, which makes the peroxide molecule release the oxygen atom faster.
the reaction creates a foam that shoots up out of the bottle, as it begins to flow out of the bottle, it looks like toothpaste being squeezed from a tube.
the bottle will feel warm to touch - this is caused by an exothermic reaction.
foamy fun....feels like shaving cream.
a bit of a warning, it will stain your clothes, so make sure you wear old play clothes or a smock.